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A Geometrical Approach of 3-D FEA for Educational Purposes Applied to Electrostatic Fields

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4 Author(s)
Rossi, L.N. ; Univ. de Sao Paulo, Sao Paulo ; Silva, V.C. ; Martinho, L.B. ; Cardoso, J.R.

A geometrical approach of the finite-element analysis applied to electrostatic fields is presented. This approach is particularly well adapted to teaching Finite Elements in Electrical Engineering courses at undergraduate level. The procedure leads to the same system of algebraic equations as that derived by classical approaches, such as variational principle or weighted residuals for nodal elements with plane symmetry. It is shown that the extension of the original procedure to three dimensions is straightforward, provided the domain be meshed in first-order tetrahedral elements. The element matrices are derived by applying Maxwell's equations in integral form to suitably chosen surfaces in the finite-element mesh.

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Magnetics, IEEE Transactions on  (Volume:44 ,  Issue: 6 )